Using Wi-Fi Infrastructure to Predict Locations and Contacts

2. The method of claim 1, further comprising initiating one or more signals to transmit identification of the respective persons whose contact scores are above a predetermined threshold.

3. The method of claim 2, wherein the one or more signals cause push notifications to be sent to the respective first mobile devices of the respective persons to alert of an exposure risk with the target person.

4. The method of claim 2, wherein the one or more signals cause a list of the respective persons whose contact scores are above the predetermined threshold to be sent to a contact tracing coordinator.

5. The method of claim 1, wherein the non-zero probabilities assigned to the locations from which signal of the AP permits a connection are each an equal probability, and the sum of the non-zero probabilities is 1.

6. The method of claim 1, wherein the non-zero probabilities assigned to the locations from which signal of the AP permits a connection are each proportional to either a maximum occupancy or a square area of the respective location, and the sum of the non-zero probabilities is 1.

7. The method of claim 1, wherein the non-zero probabilities assigned to the locations from which signal of the AP permits a connection are based in part on a record of a prior AP to which the respective mobile device connected.

10. The system of claim 9, further comprising one or more user interfaces for accessing the contact scores or lists generated from the contact scores.

11. The system of claim 9, wherein processors are further caused to perform initiating one or more signals to transmit identification of the respective persons whose contact scores are above a predetermined threshold.

12. The system of claim 11, wherein the one or more signals cause push notifications to be sent to the respective first mobile devices of the respective persons to alert of an exposure risk with the target person.

13. The system of claim 11, wherein the one or more signals cause a list of the respective persons whose contact scores are above the predetermined threshold to be sent to a contact tracing coordinator.

14. The system of claim 9, wherein the non-zero probabilities assigned to the locations from which signal of the AP permits a connection are each an equal probability, and the sum of the non-zero probabilities is 1.

15. The system of claim 9, wherein the non-zero probabilities assigned to the locations from which signal of the AP permits a connection are each proportional to either a maximum occupancy or a square area of the respective location, and the sum of the non-zero probabilities is 1.

16. The system of claim 9, wherein the non-zero probabilities assigned to the locations from which signal of the AP permits a connection are based in part on a record of a prior AP to which the respective mobile device connected.